1 files changed, 34 insertions, 0 deletions
diff --git a/src/token.c b/src/token.c
new file mode 100644
index 0000000..18ec034
--- /dev/null
+++ b/src/token.c
@@ -0,0 +1,34 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <token.h>
+
+void
+token_init(token_t *token, TokenType type, char *lexeme, unsigned int line)
+{
+  token->type = type;
+  token->lexeme = lexeme;
+  token->line = line;
+  token->string = NULL;
+}
+
+char *
+token_to_string(token_t *token)
+{
+  unsigned int line_length = snprintf(NULL, 0, "%ul", token->line) - 1;
+  /* 2: ": ", 1: "\0" */
+  unsigned int final_size = strlen(token->lexeme) + line_length + 2 + 1;
+
+  char *result = (char *) calloc(1, final_size);
+  snprintf(result, final_size, "%d: %s", token->line, token->lexeme);
+  token->string = result;
+
+  return token->string;
+}
+
+void
+token_clean(token_t *token)
+{
+  if (token->string != NULL)
+    free(token->string);
+}